OVERVIEW
The S93WD662 and S93WD663 are precision power supervisory circuits providing both active high and active low reset outputs. Both devices incorporate a watchdog timer with a nominal time-out value of 1.6 seconds.
FEATURES
• Precision Monitor & RESET Controller
— RESET and RESET# Outputs
— Guaranteed RESET Assertion to VCC = 1V
— 200ms Reset Pulse Width
— Internal 1.26V Reference with ±1% Accuracy
— ZERO External Components Required
• Watchdog Timer
— Nominal 1.6 Second Time-out Period
— Reset by Any Transition of CS
• Memory
— 4K-bit Microwire Memory
— S93WD662
– Internally Ties ORG Low
– 100% Compatible With all 8-bit Implementations
– Sixteen Byte Page Write Capability
— S93WD663
– Internally Ties ORG High
– 100% Compatible With all 16-bit Implementations
– Eight Word Page Write Capability